dunlop air bellows...weight in kg 4½ x 1 125 45 90 45 65 93 140 0.75 6 x 1 162 50 110 60 80 127 180...
TRANSCRIPT
Dunlop Air Bellows . . .
2018
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Introduction Welcome to the Dunlop Pneuride range of air bellows. These bellows are used in a wide variety of applications: Primary Application: Suspension media in all sorts of vehicles (buses, trucks, trailers, semi trailers, demountable systems, container handling systems, coaches, ambulances, etc). Secondary Application: Dunlop Pneuride Bellows, whilst originally designed for vehicle applications, have a range of unique characteristics which make them extremely attractive for industrial applications such as pneumatic/hydraulic actuation, isolation mounts, height and level control devices. Furthermore, although not specifically designed as a noise insulator, Pneuride Bellows do reduce noise transmission. Bellows are produced in a range of sizes from 4½ x 1 up to 21½ x 2. Lobes Pneuride Bellows are manufactured using a mixture of elastomers and textile reinforcement which produces a high quality, high performance product. They are frictionless, economical and virtually maintenance free and come packaged in one of three forms: 1, 2, or 3 lobes...
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Conditions of Use
Precautions to Observe Do not exceed stated stroke. Do not inflate assembly when it is unrestricted. Do not inflate beyond pressures stated without prior consultation with Dunlop. Respect maximum and minimum heights. The bellows must be securely fixed. Do not use without air pressure. Operating Temperature Standard Rubber... Minimum –30°C (-40°C Static) Maximum +70°C (+90°C Static) Chlorobutyl Rubber... Minimum –25°C (-30°C Static) Maximum +90°C (+115°C Static) Materials • Bellows : Manufactured from
various rubbers: ‘Standard’ and ‘Chlorobutyl’ (High Temperature)
• Metal Parts : Mild steel protected by zinc passivate and yellow chromate, or cast aluminium
Note The bellow assemblies can be completely dismantled
Maximum Working Pressure 8bar
Burst Pressure 25-50bar
Maximum Angle between Top and Bottom Plates, dependent upon size
7°-15°
Maximum Axial Offset 10mm
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Bellows Type Ø Max Min. Height
Max. Height
Total Stroke
Static Height
Ø Pitch Circle*
Ø Space Envelope
Weight in kg
4½ x 1 125 45 90 45 65 93 140 0.75
6 x 1 162 50 110 60 80 127 180 1.69
2¾ x 2 78 65 115 50 92 64 95 0.26
4½ x 2 125 65 145 80 100 93 140 0.93
6 x 2 168 75 215 140 140 127 180 2.08
2¾ x 3 78 80 145 65 119 64 95 0.57
4½ x 3 125 100 200 100 145 93 140 1.15
6 x 3 168 109 262 153 187 127 180 2.47
21½ x 2 570 90 390 300 200 N/A 595 21.0
Hei
ght
Ø Maximum
Space Envelope
Technical Data Summary: Aluminium-plated Bellow Assemblies
* Refers to mounting holes in bottom plate—see data sheet for more details
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Bellows Type Ø Plate Ø Max. Min. Height
Max. Height
Total Stroke
Static Height ØC Ø Space
Envelope Weight in kg
6 x 1 153 168 45 90 45 80 127 180 1.95
8 x 1 184 230 47 120 73 90 156 240 3.05
10 x 1 210 280 50 135 85 95 181 295 3.8
12 x 1 260 330 50 145 95 95 232 345 4.75
14½ x 1 310 395 47 165 118 105 283 410 6.9
6 x 2 153 168 73 170 97 120 127 180 2.25
8 x 2 184 230 72 225 153 150 156 240 3.75
9¼ x 2 197 260 70 240 170 160 168 275 4.5
10 x 2 210 280 70 240 170 160 181 295 4.6
12 x 2 260 330 74 240 166 160 232 345 5.85
12 x 2E 260 345 75 400 325 270 232 370 6.9
14½ x 2 310 395 70 280 210 180 283 410 8.5
16 x 2 310 430 77 320 243 180 283 445 8.8
6 x 3 153 168 105 255 150 180 127 180 2.55
8 x 3 184 215 100 350 250 230 156 240 4.4
10 x 3 210 280 100 365 265 235 181 295 5.4
12 x 3 260 330 100 430 330 222 232 345 7.0
14½ x 3 310 395 100 476 376 280 283 410 10.0
16 x 3 310 430 125 500 375 280 283 445 16.0
Technical Data Summary: Steel-plated Bellow Assemblies
∅ Max
∅ Plate
Hei
ght
4 Equispaced Studs
½” BSP
25
∅ C
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Isolation Dunlop Pneuride Bellows are an excellent solution to vibration isolation problems. The table opposite shows the natural frequency of the bellows at static height when pressurised at 4 bar (0.4 Mpa). The table below al lows the calculation of the percentage isolation at given forcing frequencies and natural air spring frequencies.
Dunlop Systems and Components Central Boulevard, Prologis Park, Coventry CV6 4QJ England Tel: +44 (0)24 7688 9900 Fax: +44 (0)24 7688 9901 E-mail: [email protected] www.dunlopsystems.com